Lambert here: There’s no way I’m opening up comments for a post about gold, and be very careful not to go crazy over in Links, either. Plus I don’t care about shiny substances. However, Wolf’s thinking on asset correlation in the “Everything Bubble” is interesting, which is why I’m cross-posting this.

By Wolf Richter, a San Francisco based executive, entrepreneur, start up specialist, and author, with extensive international work experience. Originally published at Wolf Street.

Since October 1, the S&P 500 index has plunged 19.6%, to 2,351 as of Monday’s fiasco. Over the same period, the price of gold has risen 7.3% to $1,271/oz. Over this short period, gold was an effective diversification.

For the year so far, the S&P 500 index is down 12.1%, gold is down 1.6%. For the past two years, the S&P 500, despite the huge volatility, is up 4.2%, and gold, also with some volatility, is up 9.7%. Moving in the same direction over these time frames, gold has been somewhat less effective as diversification, than it has been over the past three months. But as the chart below shows, its moves were not in lockstep with the S&P 500, and thus gold has helped counter-balance the erratic gyrations of the S&P 500 with its own erratic but different gyrations. Diversification can be messy:

There are many reasons to trade or own gold. But here I focus on gold as diversification to the Everything Bubble and particularly to stocks – and how that panned out over the longer term.

Diversification is not possible among asset classes that move together. If for nine years all asset classes in your holdings rose together, no matter how good this feels, you’re not diversified.

Effective diversification means that some assets rise as others fall. But in the Everything Bubble, most asset classes rose together. And “well-diversified” investors were diversified only in their imagination, as they’re now finding out as nearly all asset classes have been falling in parallel.

Effective diversification comes with some costs, and it’s not risk free, but it provides some stability and lowers the overall risk of your holdings.

Cash always provides diversification in the sense of stability in addition to providing liquidity. But from 2009 through 2016, the return on cash – such as short-term Treasury bills, FDIC-insured CDs, or FDIC-insured high-yield savings accounts – has been near zero even as inflation ate away at its purchasing power.

But since interest rates started rising, cash generates better returns. This year, the yield on short-term Treasury bills, FDIC-insured CDs, or FDIC-insured high-yield savings accounts has beaten most other assets classes (to find those CDs and savings accounts, you need to shop around). They now yield between 2% and 3%. And when these instruments are held to maturity, there is no risk to the principal since they’re redeemed at face value.

Gold doesn’t offer a yield. And its price changes constantly. So the only return obtained from gold would be derived from an increase in price. And as long as that price moves in the opposite direction over the longer term from stock-market indices, gold provides effective diversification to stocks – even if it hurts, such as when stocks surge and gold plunges, which is what happened from late 2011 through 2016.

Over the long term, gold and the S&P 500 have moved in lockstep some of the time, and diverged much of the time. This chart goes back to 1995 (both gold in $/oz and the S&P 500 index on the same axis; click to enlarge):

And when asset classes have risen together like this, it becomes very difficult to achieve diversification going forward – because now they’re at risk of all going down together.

My thoughts at the time were somewhat speculative since the S&P 500 was still surging. The chart I provided at the time was the long-term chart above, but it lacked the near-20% plunge of the S&P 500 since October 1 that the current chart shows. So in this instance, over those three months since then, gold has turned out to be a very effective diversification to stocks.

But the risk with gold remains: there is no guarantee that gold can’t also plunge, right along with the S&P 500. This is a real risk, and diversification might sound good, but when push comes to shove in a sell-off, it might not work. Nevertheless, given the difficulties of finding effective diversification in the Everything Bubble, other than cash, gold has shown it could do the job over the past three months – which largely mirrors its performance as diversification during the 2000-2002 crash and most of the 2008-2009 crash.

About Lambert Strether

Readers, I have had a correspondent characterize my views as realistic cynical. Let me briefly explain them. I believe in universal programs that provide concrete material benefits, especially to the working class. Medicare for All is the prime example, but tuition-free college and a Post Office Bank also fall under this heading. So do a Jobs Guarantee and a Debt Jubilee. Clearly, neither liberal Democrats nor conservative Republicans can deliver on such programs, because the two are different flavors of neoliberalism (“Because markets”). I don’t much care about the “ism” that delivers the benefits, although whichever one does have to put common humanity first, as opposed to markets. Could be a second FDR saving capitalism, democratic socialism leashing and collaring it, or communism razing it. I don’t much care, as long as the benefits are delivered.
To me, the key issue — and this is why Medicare for All is always first with me — is the tens of thousands of excess “deaths from despair,” as described by the Case-Deaton study, and other recent studies. That enormous body count makes Medicare for All, at the very least, a moral and strategic imperative. And that level of suffering and organic damage makes the concerns of identity politics — even the worthy fight to help the refugees Bush, Obama, and Clinton’s wars created — bright shiny objects by comparison. Hence my frustration with the news flow — currently in my view the swirling intersection of two, separate Shock Doctrine campaigns, one by the Administration, and the other by out-of-power liberals and their allies in the State and in the press — a news flow that constantly forces me to focus on matters that I regard as of secondary importance to the excess deaths. What kind of political economy is it that halts or even reverses the increases in life expectancy that civilized societies have achieved? I am also very hopeful that the continuing destruction of both party establishments will open the space for voices supporting programs similar to those I have listed; let’s call such voices “the left.” Volatility creates opportunity, especially if the Democrat establishment, which puts markets first and opposes all such programs, isn’t allowed to get back into the saddle. Eyes on the prize! I love the tactical level, and secretly love even the horse race, since I’ve been blogging about it daily for fourteen years, but everything I write has this perspective at the back of it.